1.很明显，是文件太大，无法导入。即上传文件大小有限制。所以要去解除此限制。
2.其实这个很简单的只要更改php.ini里三个配置即可
; Maximum allowed size for uploaded files. ; http://php.net/upload-max-filesize ;upload_max_filesize = 2M upload_max_filesize = 300M ; Maximum amount of memory a script may consume (128MB) ; http://php.net/memory-limit ;memory_limit = 128M memory_limit = 300M ; Maximum size of POST data that PHP will accept. ; http://php.net/post-max-size ;post_max_size = 8M post_max_size = 300M
原文：http://www.cnblogs.com/xiaoguotongxue/p/6692555.html